Revolution counter



sept. 9 1924. 1,508,121

J. K. OLSEN REVOLUTION COUNTER Filed June 2, 1922 i H I 1 A, havingbrackets,

Patented Sept. 9, 1924.

UNITED STATES PATENT OFFICE.

JOHN X. OLSAEN, OF CHICAGO, ILLINOIS, ASSIGNOB. T0 STEWART-WARNERSPEDOH- ETEB CORPORATION, 0F CHICAGO, ILLINOIS, A CORPORATION OF mGJNIA.

REVOLUTION COUNTER.

Application led June 2,

To all lwhom, it may concern: K

Be it known that I, JOHN K. OLsnN, a citizen of the United States,having residence inthe city of Chicago, in the county of Cook and Stateof Illinois, have invented certain new and useful Improvements inRevolution Counters, of which the following is a specification,reference being had to the accompanying drawings, forming a partthereof.

.The purpose of this invention is to provide an improved construction ina revolution counter,the improvement consisting in simplifying andreducing the cost of the device and adapting it for range of variabilityas to speed reduction from the initial driven wheel to the initialcounter wheel. It consists in the elements and features of constructionshown and described as indicated in the claims.

ln the drawings Figure l is fan axial section of a device embodying thisinvention.

Figure 2 is a partial axial section similar to Figure 1, showing themodification of which the device is susceptible for varying the speedreduction from the initial driven gear of the mechanism to the initialcounter wheel.

Figure 3 is a section at the Figure 2.

Figure 4 is a dissected perspective View of the mutilated gear couplesand co-operating pinion employed in speed reduction.

Figure 5 is a perspective view of interlocking extension rings forextending the inner sleeve ofthe speed reducing train.

The device comprises a frame structure, A1 and- A2,\ affording bearingsfor the main shaft, B. As shown, this main shaft is supported inscrewed-in bushings, A3 and A, at the opposite ends, of which thebushing, A4, at the left hand end extends entirely through the standardor bracket, A2, for reaching and bearing upon the left hand counterwheel, so that by the adjustment of this bushing the entire assemblageof said counter wheels may be set snugly together, taking up all slackor redundant spacing which may happen to exist by reason of unavoidablevariations in dimensions of the parts. Rotatably mounted on the shaft,B, are thecounter wheels, C,-,six in number, as shown,-in train withline, 3 3, on

\' customary carrying wheels, W, on the shaft,

1922. Serial No. 565,501.

V, parallel to the shaft, B, in all respects of familiar constructionrequiring no description at this point. At the right hand of the counterwheel, C, on the shaft, B, there is a sleeve, D, having fast uponits-1eft hand end a speed reducing gear, F, of the same construction asthe driving gear portion of each of the counter wheels, C, (except thelast which is driven only and does not drive), and which has fast on itsright c5 hand end a gear, J, identical in construe-- gear, H, and havingfast upon it at lthe opposite end a gear, I, which is a duplicate of thegear, F, on the sleeve, D. Referring to Figure l, this gear, I,co-operates directly,- that is, through a single transfer or carryingpinion as hereinafter describedf-with the gear, J, for rotating thesleeve, D, and the gear, F, thereon, for driving the rst counter wheel,C; but in Figure i there are shown interposed between the gear, l, andthe gear, J, additional prising each a driving gear, Il, and drivengear, J1, identical in construction, respectively, with the gears, I andJ, co-operating through transfer or carrying pinions, for additionalsteps of speed reduction between the prime driven gear, H, and thecounter wheel train. To afford mounting for these interposed gearcouples, the inner sleeve, D, is extended by rings, DX, interlockedsuccessively with said sleeve, D, and with each other by a notch, d1, onone of the interlocked parts engaged by a projection, d2, on the other.It will be understood that the driven gear or reduced-speed gear, J,above described as secured fast to the right hand end of the sleeve, D',willfbe fast on vthe last extension ring, D", at the nright,"'vv hen theadditional gear couples are interposed as described. At the right of thelast drivenl or reduced speed gear, J, the unoccupied length of theshaft, B, above said gear, J, to the right hand standard or bracket, A1,is taken up with spacer rings, L, whose thickness or axial length, eachis that of one' of the gear couples, I1, J1, so that to aclos Y i thirdzone, i, is the uninterrupted periphery' commodate any desired number ofinterposed gear couples for changing the speed reduction, it is onlynecessary to omit a like number of the spacers.

y The prime driven gear, I-I, is shown as a worm gear driven by a worm,D1, on a shaft journaled in the frame, A; and it may be understood thatthis shaft, B, is adapted in any suitable manner for engagement withIthe shaft whose revolutions are to be counted, the particular form orterminal yof the shaft for this purpose not being shown.

As indicated, the gear connection for speed reduction between thesleeves, D and E, and from the sleeve, E, to the first counter wheel, issubstantially identical with the familiar and customary carrying-gear'connection from counter wheel to counter wheel of the counter train. Andalthough this is a familiar construction, it is illustrated and will bedescribed for the purpose of indicating definitely what are the partsreferred to in the above description and in the claims by the terms,speed reducing gear, reduced speed gear, and speed reducing couple.Referring toFigures 2 and 3, the speed reducing gear, I, is a multilatedgear having three zones, conveniently made in three pieces riveted orsoldered together, one of which comprises the delay segment, il, and thegear interspace or notch therein, 712. The next zone comprises theclearance segment, i", and the two gear teeth, 4, d, with theinterspace, i2, continued between them. The

of a mere mounting plate, corresponding to the body of the counterwheel, C, which has situated laterally thereof, parts corresponding tothe first two zones described. The driven gear or reduced speed gear, J,comprises two zones, jl, constituting a continuously toothed oruninterrupted gear, and jg, constituting a mere mounting diskcorresponding to the body ofthe counter wheel.

which has at its right hand side a continuous gear rim corresponding tojl. The

carrying pinion, W, which transmits reduced s eed from the speedreducing gear, I, to t e reduced-speed gear, J, is the familiar pinionof the Geneva stop movement, having alternate full width and half Widthteeth, w 'and w1, respectively, coop` erating in the well understoodmanner requiring no description, with the mutilated gear, I, and thecontinuously toothed gear, J.

I claim v -1. A revolution counter comprising a standard and a mainshaft or axle supported thereon vfor carrying the counter wheelsrotatably side by side on said shaft; a.I sleeve on said shaft; aninitial mutilated speed-reducing gear rigid as to rotation with saidsleeve at the end thereof adjacent to the initial counter wheel; areduced-speed gear fast on the other end of said' sleeve; a secondsleeve rotatively mounted on the rst mentioned sleeve and longitudinallystopped thereon; a prime driven gear rigid as to rotation with saidsecond sleeve proxinate to the first mentioned mutilated orspeed-reducing gear of the first sleeve, and a speed-reducing ormutilated gear fast on the other end of said second sleeve.

2. In the structure defined in claim 1, foregoing, speed-reducingintermediate gear couples rotatably carried on said two sleeves betweensaid last mentioned gear and said reduced speed gear on the lirstmentioned sleeve.

3. In the structure definedI in claim 1, foregoing, speed reducingintermediate gear couples rotatably carried on said two sleeves betweensaid last mentioned gear and said reduced speed gear on the firstmentioned sleeve, said first mentioned sleeve comprising a main memberand one or more extension'rings coupled successively for rotation asrigid with the ymain member, said extension rings being axiallydimensioned to correspond with the intermediate gear couples,respectively. n

4. In the construction defined in claim '1, foregoing, speed reducingintermediate gear couples, rotatably carried on said two sleeves betweensaid last mentioned gear and the reduced speed gear on the firstmentioned sleeve, said first mentioned sleeve comprising an initial ormain member and extension ririgs successively coupled thereto forrotation as rigid therewith and Spacing rings or washers on the firstmentioned sleeve, said extension rings and spacing washers being axiallydimensioned correspondingly with the gear couples.

5. In the construction defined in claim 3, foregoing, the inner andlonger sleeve comprising interlocking sections extending the sleeve, theaxial length of each of said sections being that of a speed-reducingcouple, and spacing sleeves or washers ofthe same axial dimension eachas said sections, for

los

spacing the reduced speed gear on the end In testimony whereof, I havehereunto set my hand at Chicago, Illinois, this 29 day of May, 1922,

JOHN K. oL'sEN.

